Deck 6: Telecommunications and Networking

Question 1

Most public telephone systems were originally designed as an analogue network to carry voice signals.

Answer 1

True

Question 2

Wide area networks have a large capacity, and they typically use a single communications channel.

Answer 2

False

Question 3

The Internet is a wide area network.

Answer 3

True

Question 4

Systems that use digital subscriber lines (DSL)do not require modems.

Question 5

Ethernet is a common LAN protocol.

Question 6

Digital signals have two parameters: frequency and amplitude.

Question 7

IPv6 allows devices to more quickly connect to the Internet than IPv4.

Question 8

Currently, ATM networks operate only on fiber-optic cable.

Question 9

Cable media use wires or cables to transmit data and information.

Question 10

Twisted-pair wire is the least-used form of communications wiring.

Question 11

Peer-to-peer processing means each computer acts as both a client and a server.

Question 12

Digital signals are continuous waves that transmit information by altering the characteristics of the waves.

Question 13

Network interface cards are special adapters that link an individual device to the communications medium on a local area network.

Question 14

Voice and data communications are becoming faster but slightly more expensive.

Question 15

A local area network connects two or more communicating devices in a limited geographical area.

Question 16

Cladding is the coating that surrounds fiber-optic cables and prevents light from leaking out of the fiber.

Question 17

Digital signals are discrete pulses that are either on or off.

Question 18

The network interface card typically houses the LAN's network operating system.

Question 19

LANs typically contain multiple WANs.

Question 20

The World Wide Web is synonymous with the Internet.

Question 21

Uniform resource locators (URLs)point to the address of a specific resource or site on the Web.

Question 22

The Internet is a global network of computer networks.

Question 23

Uniform resource locators (URLs)are software applications through which users access the Web.

Question 24

An Internet service provider is a company that offers Internet connections for a fee.

Question 25

Commercial portals are intended for broad audiences and offer fairly routine content.

Question 26

Network access points (NAPs)are exchange points for Internet traffic.

Question 27

An intranet is a network that uses Internet technologies and is designed to serve the information needs of a single organization.

Question 28

The World Wide Web is a system with universally accepted standards for storing, retrieving, formatting, and displaying information via a client/server architecture.

Question 29

Industrywide portals are intended for broad audiences and offer fairly routine content.

Question 30

Extranets offer limited accessibility to the intranets of participating companies.

Question 31

The quality of automatic translation of web pages is usually just as good as human translation.

Question 32

A major problem of the discovery applications of networks is the huge amount of information available.

Question 33

An extranet is a network that uses Internet technologies and is designed to serve the information needs of a single organization.

Question 34

Metasearch engines search several engines at once and integrate the findings of the various search engines.

Question 35

The hypertext transport protocol (HTTP)is the communications standard used to transfer pages across the World Wide Web portion of the Internet.

Question 36

Intranets support discovery, communication, and collaboration inside an organization.

Question 37

A domain name is the official name assigned to an Internet site, consisting of multiple parts, separated by dots, which are translated from right to left in locating the site.

Question 38

VoIP converts analogue signals to digital ones.

Question 39

The rightmost part of an Internet name is the top-level domain.

Question 40

Crowdsourcing refers to outsourcing a task to an undefined, generally large group of people in the form of an open call.

Question 41

A _____ network is a high-speed central network to which multiple smaller networks connect?

A)router
B)gateway
C)bridge
D)backbone
E)file server

Question 42

Electronic mail is the largest-volume application running over the Internet.

Question 43

With Voice-over-IP, every call opens up a dedicated circuit for the duration of the call.

Question 44

A _____ allows a device to physically connect to a local area network's communications medium.

A)file server
B)network interface card
C)network operating system
D)communications channel
E)gateway

Question 45

Which of the following is not a reason networks are essential?

A)They offer a company flexibility.
B)They allow companies to share resources.
C)Computers typically work in isolation.
D)Employees are geographically dispersed.

Question 46

Every device in the ________ has a NIC that allows the device to physically connect to the network's communication medium.

A)LAN
B)MAN
C)PAN
D)WAN

Question 47

Which of the following is not a component of a local area network?

A)File server
B)Client computers
C)Bridge
D)Network interface cards
E)All of these

Question 48

E-learning is conducted only in virtual classrooms, where all coursework is completed online.

Question 49

The University of Alberta has had great success with MOOCs.

Question 50

The components of a local area network include which of the following?

A)File server
B)Client computers
C)Wireline or wireless communications media
D)Network interface cards
E)All of these

Question 51

Virtual universities are online universities from which students take classes from home or at an off-site location, via the Internet.

Question 52

From largest to smallest, what is the correct order for the types of networks?

A)WAN, MAN, PAN, LAN
B)MAN, WAN, LAN, PAN
C)WAN, MAN, LAN, PAN
D)MAN, WAN, PAN, LAN

Question 53

All of the following statements concerning wide area networks are true except:

A)They are provided by individual companies.
B)They have large capacity.
C)They cover large geographical areas.
D)They combine multiple communications channels.
E)The Internet is an example of a wide area network.

Question 54

A(n)_____ connects two or more devices in a limited geographical area.

A)local area network
B)wide area network
C)personal area network
D)enterprise network
E)value added network

Question 55

A _____ sends messages through several connected LANs or to a wide area network.

A)router
B)network interface card
C)bridge
D)gateway
E)file server

Question 56

______________ refers to the transmission capacity of a network.

A)Bandwidth
B)Bandlength
C)Broadband
D)Narrowband

Question 57

Which of the following are advantages of computer networks?

A)They enable organizations to be more flexible.
B)They enable companies to share hardware, computer applications, and data.
C)They enable geographically dispersed employees to work together.
D)They provide a critical link between businesses and their customers.
E)All of these

Question 58

Employees who telecommute have generally found that the experience enhances their careers.

Question 59

_____ usually spans a city.

A)LAN
B)MAN
C)PAN
D)WAN

Question 60

_______ refers to network transmission capacities ranging from approximately 1 to 1.75 megabits per second.

A)Protocol
B)Broadband
C)Capacity
D)Narrowband
E)Bandwidth

Question 61

______________ is access to the Internet through your TV connection.

A)Cable modem
B)Dial-up
C)DSL
D)FTTH

Question 62

The _____________ layer of TCP/IP provides the addressing, routing, and packaging of data packets.

A)application
B)Internet
C)network interface
D)transport

Question 63

______ signals convey information in wave form, whereas ______ signals convey information in binary form.

A)Analogue, packet
B)Analogue, digital
C)Digital, packet
D)Digital, analogue
E)Packet, analogue

Question 64

Some modems convert ________ to __________, which is called __________.

A)analogue, digital, modulation
B)digital, analogue, demodulation
C)analogue, numbers, demodulation
D)digital, analogue, modulation

Question 65

_______ was implemented to address smartphones, as they are basically hand-held computers.

A)IPv4
B)IPv5
C)IPv6
D)IPv7

Question 66

VPN is a type of ______________.

A)extranet
B)Internet
C)intranet
D)None of the above

Question 67

The cable medium with the highest bandwidth is:

A)Twisted-pair wire
B)Coaxial cable
C)Fiber-optic cable
D)Cellular radio
E)Copper cable

Question 68

The function of _________ is to convert digital signals to analogue signals and vice versa.

A)modems
B)multiplexers
C)front-end processors
D)servers
E)clients

Question 69

Gal runs a music store. He has a desktop computer in the back room that acts as a server. He has a point-of-sale terminal that connects to the desktop. He also has a notebook (using in-store wireless access to the Internet)that can be carried around the store to look up current items in stock or to search for items from one of his suppliers for special orders. Which type of network does Gal have?

A)Client-server
B)Mainframe-based
C)LAN
D)WAN
E)Peer-to-peer

Question 70

Which of the following is a disadvantage of twisted-pair wire?

A)Availability
B)Cost
C)Flexibility
D)Speed

Question 71

Which of the following is not a characteristic of twisted-pair wire?

A)Inexpensive
B)Easy to work with
C)Subject to interference from other electrical sources
D)Secure transmissions
E)None of these

Question 72

Which of the following is an advantage of coaxial cable?

A)Cost
B)Flexibility
C)Higher bandwidth than twisted pair
D)All of the above are advantages.

Question 73

In regard to IT network fundamentals, a protocol is:

A)a device that handles the switching of voice and data in a local area network
B)a standard set of rules and procedures for the control of communications in a network
C)a communications service for the connection of devices in a local area network
D)the main communications channel in a wide area network
E)synonymous with network interface card

Question 74

In order to ensure that computers developed by different manufacturers can communicate, __________ have been developed.

A)protocols
B)client/server architectures
C)WANs
D)application software packages
E)developmental architectures

Question 75

Data are sent through a fiber-optic cable by a(n)_______.

A)optical switch
B)electromagnetic switch
C)light pulse
D)multiplexer
E)optical modem

Question 76

Which of the following is not a communications channel?

A)Fiber-optic cable
B)Microwave transmission
C)Twisted-pair wire
D)Integrated circuits
E)Satellite radio

Question 77

The Web __________ the same thing as the Internet.

A)could be
B)is
C)is not
D)I don't know.

Question 78

_________ operates on the same lines as telephones, and the Internet is always available.

A)Cable
B)Dial-up
C)DSL
D)Satellite

Question 79

Real-time, person-to-person collaboration is one of three basic types of:

A)peer-to-peer processing
B)client/server computing
C)Internet network applications
D)collaboration application technologies

Question 80

__________ is the most prevalent form of communications wiring.

A)Coaxial cable
B)Fiber-optic cables
C)Twisted-pair wire
D)Wireless